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News

Bureau of Labor Statistics

Technical Contact:
(202) 691-6199 ocltinfo@bls.gov
Media Contact:
(202) 691-5902
Internet address:
http://www.bls.gov/ncs/ocs/home.htm

United States
Department
of Labor
Washington, D.C. 20212
USDL: 05-2382
FOR RELEASE: 10:00 A.M. (EST)
WEDNESDAY, DECEMBER 28, 2005

(This news release was reissued on Wednesday, May 26, 2010, to remove table asterisks that have
incorrectly indicated statistically significant differences between some estimates. News release text
references to statistical significance have also been removed. Pay relative estimates have not changed.
For more information, see http://www.bls.gov/ncs.)

OCCUPATIONAL PAY RELATIVES, 2004
The Bureau of Labor Statistics (BLS) of the U.S. Department of Labor has produced occupational “pay
relatives” to facilitate comparisons of occupational pay between metropolitan areas and the United States as a
whole. BLS periodically has issued occupational pay relatives using data from the National Compensation
Survey (NCS) and its predecessor surveys, and now plans to publish them annually. Using data for 2004 from
the NCS, pay relatives have been prepared for each of 9 major occupational groups within 78 Metropolitan
Statistical Areas (MSAs), as well as averaged across all occupations for each area.
The pay relative in 2004 for workers in construction and extraction occupations in the San Francisco
MSA was 127, meaning the pay in San Francisco in that occupational group averaged 27 percent more than the
national average pay for workers in that occupational group (table 1). The pay relative averaged across all
occupations for workers in the San Francisco MSA was 117, meaning that pay on average was 17 percent more
in that area than for the nation as a whole. By contrast, the pay relative for workers in construction and
extraction occupations in the Brownsville, TX MSA, was 70, meaning pay for workers in those occupations
averaged 30 percent less than the national average. Pay averaged across all occupations in the Brownsville
MSA was 19 percent below the national average. The pay relatives averaged for workers in all occupations in
San Francisco and Brownsville were, respectively, the highest and lowest among the 78 areas. In addition to
these examples of area-to-national comparisons, area-to-area comparisons can be derived using these pay
relatives.
The National Compensation Survey (NCS), introduced in 1997, collects earnings and other data on
employee compensation covering over 820 detailed occupations in 152 metropolitan and non-metropolitan
areas. Average occupational earnings from the NCS are published annually for more than 80 metropolitan areas
and for the United States as a whole.
What is a pay relative?

2

A pay relative is a calculation of pay—wages, salaries, commissions, and production bonuses—for a
given metropolitan area relative to the nation as a whole. The calculation controls for differences among areas
in occupational composition, establishment and occupational characteristics, and the fact that data are collected
for areas at different times during the year.
Metropolitan areas differ greatly in the types of occupations that are available to the local workforce.
For example, the proportion of San Francisco's workers who are employed as computer programmers is
approximately 48 percent greater than the national average.i Similarly, the composition of establishment and
occupational characteristics—such as whether an establishment is for profit or not-for-profit or whether an
occupation is union or nonunion—varies by area. In addition to these factors, the NCS collects compensation
data for metropolitan areas at different times during the year. Payroll reference dates differ between areas
which makes direct comparisons between areas difficult.
The pay relative approach controls for these differences to isolate the geographic effect on wage
determination. To illustrate the importance of controlling for these effects, consider the following example.
The average pay for professional workers in San Francisco is $38.66 and the average pay for professional
workers in the entire US is $29.40.ii A simple pay comparison can be calculated from the ratio of the two
average pay levels, multiplied by 100 to express the comparison as a percentage. The pay comparison in the
example is calculated as:

$38.66  $29.40100  131
However, this comparison does not control for the interarea difference in occupational composition.
Some of the 31 percent pay premium in San Francisco relative to the nation as a whole is due to the higher
concentration of highly compensated professional workers—such as computer programmers—in San Francisco.
A more accurate estimate of the geographic effect on wage determination in San Francisco can be obtained by
taking into account this and other differences. Controlling for the differences in occupation composition,
establishment and occupational characteristics, and the payroll reference date in San Francisco relative to the
nation as the whole, the pay relative for professional occupations in San Francisco is equal to 118.
Using multivariate regression analysis
A statistical technique called multivariate regression analysis controls for interarea differences. It
controls for the following ten characteristics:











Occupational type
Industry type
Work level
Full-time / part-time status
Time / incentive status
Union / nonunion status
Ownership type
Profit / non-profit status
Establishment employment
Payroll reference date

3

Even accounting for these characteristics, there is still wage variation across the areas. The variation is
due to differences in wage determinants that were not included in the model. Examples of these determinants
include price levels, environmental amenities such as a pleasant climate, and cultural amenities.
For more detailed information on the pay relative methodology, see Maury B. Gittleman, "Pay Relatives
for Metropolitan Areas in the U.S.," Monthly Labor Review, March 2005, pp. 46-53.
Results
Table 1 presents July 2004 pay relatives averaged across all occupations covered by the NCS survey and
nine occupational groups in 78 metropolitan areas. This table represents the first presentation of NCS wage
data using the 2000 Standard Occupational Classification System (SOC). For more detailed information on
SOC, see the BLS website: http://www.bls.gov/soc/home.htm.
The occupational groups are:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)

management, business, and financial occupations
professional and related occupations
service occupations
sales and related occupations
office and administrative support occupations
construction and extraction occupations
installation, maintenance, and repair occupations
production occupations
transportation and material movement occupations

Comparisons between areas
The pay relatives presented in Table 1 are area-to-national comparisons. However, it is easy to derive
area-to-area comparisons from them. To do so, divide the pay relative for the occupational group and area in
question by the pay relative for the same occupational group in the area to which the first is being compared.
Then multiply the result by 100 so that the comparison is expressed as a percentage.
For example, the pay relative for professional occupations in San Francisco is 118 and the pay relative
for professional occupations in Los Angeles is 111. The San Francisco-to-Los Angeles pay relative for
professional occupations is calculated as:

118  111100  106
In the example, there is approximately a 6 percent pay premium for professional occupations in San
Francisco relative to the same occupational group in Los Angeles.
Differences between the 2004 pay relatives and historical pay relatives
Historical pay relative data are available for 2002iii, 1998iv, and 1992–1996.v There are several
differences between the 2004 pay relatives and the historical pay relatives, including different industry and
occupation classification systems, varying methodology, and different survey designs. These differences limit
comparability.

4

The 2004 pay relatives use the 2002 North American Industry Classification System (NAICS) to define
industry type. Occupation type and the occupational groups presented in Table 1 are defined using the Standard
Occupational Classification System (SOC). The 2002 and 1992–1996 pay relatives defined industry type using
the Standard Industry Classification (SIC) system. Occupation type and occupational groups for the 2002,
1998, and 1992–1996 pay relatives were defined using the Occupational Classification System (OCS).
The 2004 and 2002 pay relatives used a similar multivariate regression technique methodology to
calculate pay relatives. The 1998 and 1992–1996 pay relatives were calculated using a weighted cell means
methodology. The methodology controlled for fewer characteristics:




Occupational type
Work level
Payroll reference date

The 2004, 2002, and 1998 pay relatives were derived from the National Compensation Survey (NCS).
The 1992–1996 pay relatives were derived from the Occupational Compensation Survey (OCS). The NCS and
OCS have significantly different sample designs. For example, the OCS collected wage data for sampled
establishments with 50 or more employees. The NCS collects data for all sampled establishments.
Additionally, the OCS collected wage data for a fixed list of jobs. The NCS collects wage data for randomly
selected jobs.

91
111
103
95
97
94
93
112
81
102
96
98
106
101
101
97
88
99
99
102
106
94
97
104
87
99
96
113
99
104
97
97
98
100
87
98
95
92
107
100
92
96

Amarillo, TX ......................................................
Anchorage, AK .................................................
Atlanta, GA .......................................................
Augusta-Aiken, GA-SC .....................................
Austin-San Marcos, TX .....................................
Birmingham, AL ................................................

Bloomington, IN ................................................
Boston-Worcester-Lawrence, MA-NH-ME-CT ..
Brownsville-Harlingen-San Benito, TX .............
Buffalo-Niagara Falls, NY .................................
Charleston-North Charleston, SC .....................
Charlotte-Gastonia-Rock Hill, NC-SC ...............
Chicago-Gary-Kenosha, IL-IN-WI .....................

Cincinnati-Hamilton, OH-KY-IN ........................
Cleveland-Akron, OH ........................................
Columbus, OH ..................................................
Corpus Christi, TX ............................................
Dallas-Fort Worth, TX .......................................
Dayton-Springfield, OH .....................................
Denver-Boulder-Greeley, CO ...........................

Detroit-Ann Arbor-Flint, MI ................................
Elkhart-Goshen, IN ...........................................
Fort Collins-Loveland, CO ................................
Grand Rapids-Muskegon-Holland, MI ..............
Great Falls, MT .................................................
Greensboro-Winston Salem-High Point, NC ....
Greenville-Spartanburg-Anderson, SC .............

Hartford, CT ......................................................
Hickory-Morganton-Lenoir, NC .........................
Honolulu, HI ......................................................
Houston-Galveston-Brazoria, TX ......................
Huntsville, AL ....................................................
Indianapolis, IN .................................................
Iowa City, IA .....................................................

Johnstown, PA ..................................................
Kansas City, MO-KS .........................................
Knoxville, TN ....................................................
Lincoln, NE .......................................................
Los Angeles-Riverside-Orange County, CA .....
Louisville, KY-IN ...............................................
Melbourne-Titusville-Palm Bay, FL ...................

Memphis, TN-AR-MS .......................................

See footnotes at end of table.

100

All
occupations

United States ....................................................

Metropolitan Area1

94

95
87
105
93
108
103
89

107
88
104
107
98
94
99

102
92
88
101
85
95
93

95
101
90
95
103
93
101

102
110
78
92
105
97
103

89
110
101
94
95
104

100

Management,
business, and
financial

89

84
93
91
87
111
102
86

109
93
106
102
99
98
98

107
99
95
100
83
98
94

98
101
96
93
100
96
99

87
109
95
97
98
91
103

87
109
99
97
95
97

100

Professional
and related

(Average pay nationally for all occupations and for each occupational group shown = 100.)

93

90
98
89
95
111
105
95

124
98
107
88
95
96
104

101
92
97
101
92
97
93

104
99
96
84
95
94
101

93
114
81
108
86
94
105

89
119
102
89
102
97

100

Service

94

90
105
92
91
109
98
96

114
90
105
98
96
82
91

98
95
96
106
82
88
91

104
97
100
90
101
102
97

96
106
80
100
93
102
108

88
101
107
88
100
92

100

Sales and
related

92

83
101
99
90
107
100
92

111
100
102
97
97
104
103

108
92
99
100
81
100
99

100
99
99
86
100
96
101

88
117
81
102
99
101
108

90
107
105
93
102
92

100

Office and
administrative
support

Table 1. Pay relatives for major occupational groups in metropolitan areas, National Compensation Survey, July 2004

111

84
103
86
82
110
104
90

138
81
102
94
89
95
104

110
99
99
106
122
93
90

102
96
112
80
96
99
96

98
117
70
101
81
89
123

89
130
103
88
93
76

100

Construction
and extraction

103

107
94
92
96
109
91
101

111
97
107
95
95
99
92

104
87
100
101
100
102
88

98
105
98
84
98
99
106

92
111
80
101
89
98
105

90
108
108
98
103
100

100

Installation,
maintenance,
and repair

94

85
109
93
94
97
92
89

112
103
94
96
98
106
99

115
95
96
107
101
104
103

108
106
92
90
94
112
104

98
109
73
105
93
104
103

110
122
100
99
90
93

100

Production

101

80
100
94
95
101
99
100

110
111
106
93
94
104
105

109
94
100
107
88
104
97

100
105
98
85
99
104
104

101
119
77
101
102
103
109

97
114
103
96
87
94

100

Transportation
and material
moving

5

107
98
96

107
102
97
100
108
104
99
100
99
99
101
108
110
92
108
117
105
94
89
98
86
94
98
105
98
98

Portland-Salem, OR-WA ..................................
Providence-Fall River-Warwick, RI-MA ............
Reading, PA .....................................................
Reno, NV ..........................................................
Richland-Kennewick-Pasco, WA ......................
Richmond-Petersburg, VA ................................
Rochester, NY ..................................................

Rockford, IL ......................................................
Sacramento-Yolo, CA .......................................
Salinas, CA .......................................................
San Antonio, TX ...............................................
San Diego, CA ..................................................
San Francisco-Oakland-San Jose, CA .............
Seattle-Tacoma-Bremerton, WA ......................

Springfield, MA .................................................
Springfield, MO .................................................
St. Louis, MO-IL ................................................
Tallahassee, FL ................................................
Tampa-St. Petersburg-Clearwater, FL .............
Visalia-Tulare-Porterville, CA ...........................

Washington-Baltimore, DC-MD-VA-WV ...........
York, PA ...........................................................
Youngstown-Warren, OH .................................

108
101
94

107
88
95
86
90
105

102
112
117
93
117
118
98

93
110
101
95
99
97
97

108
101
96

93
88
88
89

115

97
95
104
93
93

Professional
and related

105
97
88

106
89
95
84
92
98

98
113
111
87
111
121
116

109
117
103
102
105
99
107

106
94
99

91
87
88
86

110

91
100
119
85
83

Service

101
102
101

110
88
105
99
106
101

93
108
119
97
111
113
103

102
113
103
111
105
99
96

112
130
94

98
91
91
100

107

94
120
105
88
109

Sales and
related

110
93
87

110
86
98
88
93
96

93
106
110
95
103
120
105

102
109
102
91
92
98
95

108
106
99

96
97
89
92

114

93
102
105
92
84

103
91
99

107
83
112
91
88
87

111
105
118
79
108
127
115

108
98
100
101
99
88
95

106
90
91

87
81
86
87

127

84
105
116
91
85

Office and
Construction
administrative
and extraction
support

1 A metropolitan area can be a Metropolitan Statistical Area (MSA) or Combined Statistical Area (CSA) as defined by the Office of Management and Budget, 1994.

101
106
89

103
91
95
83
99
95

84
106
108
91
109
117
95

97
103
108
93
98
95
101

94
98
86
91

111

110
93
92
91
91

98
100
103
90
87

Management,
business, and
financial

93
105
109
90
90

All
occupations

Norfolk-VA Beach-Newport News, VA-NC .......
Ocala, FL ..........................................................
Oklahoma City, OK ...........................................
Orlando, FL .......................................................
Philadelphia-Wilmington-Atlantic City,
PA-NJ-DE-MD ................................................
Phoenix-Mesa, AZ ............................................
Pittsburgh, PA ...................................................

Miami-Fort Lauderdale, FL ...............................
Milwaukee-Racine, WI ......................................
Minneapolis-St. Paul, MN-WI ...........................
Mobile, AL .........................................................
New Orleans, LA ..............................................
New York-Northern New Jersey- Long Island,
NY-NJ-CT-PA .................................................

Metropolitan Area1

(Average pay nationally for all occupations and for each occupational group shown = 100.)

Table 1. Pay relatives for major occupational groups in metropolitan areas, National Compensation Survey, July 2004 — Continued

101
100
96

109
90
95
79
101
99

115
112
109
83
108
116
102

105
88
98
114
92
97
89

107
106
95

92
94
93
104

100

93
111
108
90
89

Installation,
maintenance,
and repair

102
94
111

110
95
97
83
93
93

107
106
100
100
100
110
108

99
100
104
93
104
101
102

101
102
94

86
86
97
90

102

89
117
111
91
86

Production

98
101
111

65
94
109
108
100
91

103
110
96
95
102
113
105

103
115
108
100
100
104
100

108
100
101

93
104
93
92

113

92
107
119
98
94

Transportation
and material
moving

6

7

Technical Note
The pay relatives in this release, as with estimates from any sample survey, are subject to sampling and
non-sampling errors. Sampling errors are differences that occur between the pay relatives estimated from the
sample and the true pay relatives derived from the population. Pay relatives are also subject to a variety of nonsampling errors that can influence the estimates. The NCS may be unable to obtain information for some
establishments; there may be difficulties with survey definitions; respondents may be unable to provide correct
information, or mistakes in recording or coding the data may occur. Non-sampling errors of these kinds were
not specifically measured. However, they are expected to be minimal due to the extensive training of the field
economists who gathered the survey data, computer edits of the data, and detailed data review.
For more details, see Maury B. Gittleman, "Pay Relatives for Metropolitan Areas in the NCS" Monthly
Labor Review, March 2005, pp. 46-53, and Parastou Karen Shahpoori, "Pay Relatives for Major Metropolitan
Areas," Compensation and Working Conditions Online, April 28, 2003.

i

The proportion of computer programmers in San Francisco relative to the nation as a whole was calculated using total employment
estimates found in the November 2004 Metropolitan Area Occupational Employment and Wage Estimates publication,
http://www.bls.gov/oes/current/oessrcma.htm.
ii
Average pay for professional workers in San Francisco and for the United States are based on wage estimates published in the San
Francisco–Oakland–San Jose, CA National Compensation Survey, April 2004 and the National Compensation Survey: Occupational
Wages in the United States, July 2004, http://www.bls.gov/ncs/ocs/compub.htm.
iii
For more information, see Maury B. Gittleman, "Pay Relatives for Metropolitan Areas in the U.S.," Monthly Labor Review, March
2005, pp. 46-53.
iv
For more information, see Parastou Karen Shahpoori, "Pay Relatives for Major Metropolitan Areas," Compensation and Working
Conditions, Spring 2003.
v
For more information, see the Occupational Compensation Survey Publications List (1992-1996),
http://www.bls.gov/ncs/ocspubs.htm.